PowerShell output to textbox

Question

I wanna get all the details from the PowerShell cmdlet Get-NetConnectionProfile but it doesn't show it in the textbox and I don't really know why.

I tried other "get" cmdlets like Get-NetAdapter, which worked perfectly. I could see everything in the textbox.

ProcessStartInfo psi = new ProcessStartInfo("powershell");
psi.UseShellExecute = false;
psi.RedirectStandardOutput = true;
psi.CreateNoWindow = true;
psi.RedirectStandardInput = true;
var proc = Process.Start(psi);

proc.StandardInput.WriteLine("Get-NetConnectionProfile");
proc.StandardInput.WriteLine(@"exit");
string s = proc.StandardOutput.ReadToEnd();

TxtIp.Text = s;

This isn't a great way to use PowerShell from C#. You should use the PowerShell class instead of trying to run your commands in a separate process. — boxdog
– boxdog, Commented Sep 14, 2019 at 16:32
Does Get-NetConnectionProfile work in PowerShell? What output do you expect? You may need to pipe the results — Jeremy Thompson
– Jeremy Thompson, Commented Sep 14, 2019 at 20:07
By "all details", I assume you mean the default output seen when you run Get-NetConnectionProfile. See my answer and let me know — VA systems engineer
– VA systems engineer, Commented Sep 15, 2019 at 14:52

VA systems engineer · Accepted Answer · 2019-09-15 13:59:20Z

By "all details", I assume you mean the default output seen when you run Get-NetConnectionProfile:

PS C:\Temp> Get-NetConnectionProfile

Name             : E12345
InterfaceAlias   : Wi-Fi
InterfaceIndex   : 15
NetworkCategory  : Private
IPv4Connectivity : Internet
IPv6Connectivity : Internet

Program 1 is a pure PowerShell solution using WinForms

I tried to execute Get-NetConnectionProfile from c# (see Creating an InitialSessionState but got a `Provider load failure' and could not solve the issue (This is the PowerShell class solution mentioned by boxdog).

Note: I have had success with executing PowerShell cmdlets from a C# program (see How do I login to a XEN session from a C# program using a secure string password? so I know its possible

Program 1

#region functions

Function ButtonGo_Click
{
    $output = Get-NetConnectionProfile
    $textBoxDisplay.Text = ("Name="+$output.Name.ToString() + [Environment]::NewLine)
    $textBoxDisplay.Text = $textBoxDisplay.Text + ("InterfaceAlias="+$output.InterfaceAlias.ToString() + [Environment]::NewLine)
    $textBoxDisplay.Text = $textBoxDisplay.Text + ("InterfaceIndex="+$output.InterfaceIndex.ToString() + [Environment]::NewLine)
    $textBoxDisplay.Text = $textBoxDisplay.Text + ("NetworkCategory="+$output.NetworkCategory.ToString() + [Environment]::NewLine)
    $textBoxDisplay.Text = $textBoxDisplay.Text + ("IPv4Connectivity="+$output.IPv4Connectivity.ToString() + [Environment]::NewLine)
    $textBoxDisplay.Text = $textBoxDisplay.Text + "IPv6Connectivity="+$output.IPv6Connectivity.ToString()
}

#endregion

#region designer

[System.Windows.Forms.Application]::EnableVisualStyles()
$buttonGo = New-Object 'System.Windows.Forms.Button'
$buttonGo.Location = '10, 10'
$buttonGo.Name = "buttonGo"
$buttonGo.Size = '75, 25'
$buttonGo.TabIndex = 0
$buttonGo.Text = "&Go"
$buttonGo.UseVisualStyleBackColor = $true
$buttonGo.Add_Click({ButtonGo_Click})

$textBoxDisplay = New-Object 'System.Windows.Forms.TextBox'
$textBoxDisplay.Location = '12, 50'
$textBoxDisplay.Multiline = $true
$textBoxDisplay.Name = "textBoxDisplay"
$textBoxDisplay.Size = '470, 150'
$textBoxDisplay.TabIndex = 1

$mainForm = New-Object 'System.Windows.Forms.Form'
$mainForm.Size = '500, 250'
$mainForm.Controls.Add($buttonGo)
$mainForm.Controls.Add($textBoxDisplay)
$mainForm.FormBorderStyle = [System.Windows.Forms.FormBorderStyle]::FixedDialog
$mainForm.Name = "mainForm"
$mainForm.Text = "Show Get-NetConnectionProfile Output"

#endregion designer

cls
$mainForm.ShowDialog()

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